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| 箱形梁曲线桥; 曲线箱形梁桥; 弯箱形梁桥; 曲线箱梁桥 | |||
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| 曲线箱形梁桥 | |||
| curved box girder bridge: 4 phrases in 2 subjects |
| Bridge construction | 3 |
| Technology | 1 |
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